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Rapid Confirmation (rapid + confirmation)
Selected AbstractsRapid Confirmation of Central Venous Catheter Placement Using an Ultrasonographic "Bubble Test"ACADEMIC EMERGENCY MEDICINE, Issue 7 2010Matthew E. Prekker MD No abstract is available for this article. [source] Variability in Postpacing Intervals Predicts Global Ventricular Activation Pattern during TachycardiaPACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 2 2010ILYAS K. COLOMBOWALA M.D. Introduction: Assessment of ventricular activation pattern is critical to the successful ablation of ventricular tachycardia (VT). We have previously shown that the global atrial activation pattern during tachycardia can be rapidly and accurately assessed by calculating the postpacing interval variability (PPIV); PPIV was minimal in circuitous tachycardias and highly variable in centrifugal tachycardias. In the present study, we use the PPIV to determine the ventricular global activation pattern during VT. Methods: Patients with mappable VT were included. We defined global ventricular activation as either centrifugal (arising from a focus with radial expansion) or circuitous (gross macro-reentrant circuit), based on the findings of electroanatomic mapping. PPIV was calculated as the difference in postpacing interval with right ventricular apical overdrive pacing during tachycardia at cycle lengths (CL) 10 ms and 30-ms shorter than tachycardia, regardless of the origin of the tachycardia. We studied 20 patients with 23 VTs (11 centrifugal, mean CL 390 ± 36.1 ms; 12 circuitous, mean CL 418 ± 75.7 ms). Results: The mean PPIV was 45 ± 16 ms for patients with centrifugal VT and 6.7 ± 4.1 ms for patients with circuitous VT. Rank sum analysis of PPIV showed a significant difference between the two groups (P < 0.05). Conclusions: Our data suggest that the global ventricular activation pattern during VT can be rapidly and accurately defined by assessing the PPIV. This technique allows for a rapid confirmation of the tachycardia activation and significantly facilitates mapping and ablation. (PACE 2010; 33:129,134) [source] A SPECTROSCOPIC INVESTIGATION OF PIGMENT AND CERAMIC SAMPLES FROM COPÁN, HONDURAS,ARCHAEOMETRY, Issue 1 2009R. A. GOODALL A combination of micro-Raman spectroscopy, micro-infrared spectroscopy and SEM,EDX was employed to characterize decorative pigments on Classic Maya ceramics from Copán, Honduras. Variation in red paint mixtures was correlated with changing ceramic types and improvements in process and firing techniques. We have confirmed the use of specular hematite on Coner ceramics by the difference in intensities of Raman bands. Different compositions of brown paint were correlated with imported and local wares. The carbon-iron composition of the ceramic type, Surlo Brown, was confirmed. By combining micro-Raman analysis with micro-ATR infrared and SEM,EDX, we have achieved a more comprehensive characterization of the paint mixtures. These spectroscopic techniques can be used non-destructively on raw samples as a rapid confirmation of ceramic type. [source] Sight-threatening varicella zoster virus infection after fludarabine treatmentBRITISH JOURNAL OF HAEMATOLOGY, Issue 4 2000Y. L. Chee Varicella zoster virus (VZV) infection involving the posterior segment of the eye after fludarabine treatment has not previously been described. Two patients, who had completed fludarabine treatment 3 and 18 months previously, presented with visual loss that had been preceded by a recent history of cutaneous zoster. The use of the polymerase chain reaction (PCR) for VZV DNA from ocular specimens allowed rapid confirmation of clinical diagnosis and treatment with a good outcome in one patient. With the increasing use of fludarabine and other purine analogues, an awareness of such complications is important because of their potentially sight-threatening consequences. [source] | ||||||||||